Dear Simone, <div><br /></div><div>You may define the thermal regions and set tuned noisy gamma for each region independently.</div><div><a href="https://manual.cp2k.org/cp2k-2022_1-branch/CP2K_INPUT.html">CP2K_INPUT</a> / <a href="https://manual.cp2k.org/cp2k-2022_1-branch/CP2K_INPUT/MOTION.html">MOTION</a> / <a href="https://manual.cp2k.org/cp2k-2022_1-branch/CP2K_INPUT/MOTION/MD.html">MD</a> / <a href="https://manual.cp2k.org/cp2k-2022_1-branch/CP2K_INPUT/MOTION/MD/THERMAL_REGION.html">THERMAL_REGION</a> / <a href="https://manual.cp2k.org/cp2k-2022_1-branch/CP2K_INPUT/MOTION/MD/THERMAL_REGION/DEFINE_REGION.html">DEFINE_REGION</a></div><div><br />Regards</div><div>marcella</div><div><br /></div><div class="gmail_quote"><div dir="auto" class="gmail_attr">On Monday, February 6, 2023 at 5:25:48 PM UTC+1 sim.ri...@gmail.com wrote:<br/></div><blockquote class="gmail_quote" style="margin: 0 0 0 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div>Dear cp2k-users,</div><br>I have thermalisation problems with my heterostructure, consisting of a GST + TiTe2 (633 atoms), where I consider van der Waals interactions (with DFT-D3). Initially I have a relaxed structure (CELL_OPT), which I want to thermalise at 600K. I am using the SGCPMD (&LANGEVIN). The problem is that the titanium atoms do not thermalise at 600K, but at a lower temperature, whereas the other atoms do so acceptably. I have also tried thermalising initially with an NVT and then using SGCPMD, but the problem persists. <br>I cannot use TEMP_TOL so as not to affect dynamic properties such as diffusion etc etc.<br><br>This also happens at 1300K (melting of GST). <br><br>In general, I have tried different gamma values. <br><br>I attached the input file.<br><br>Many thanks in advance,<br>Simone<br><br></blockquote></div>
<p></p>
-- <br />
You received this message because you are subscribed to the Google Groups "cp2k" group.<br />
To unsubscribe from this group and stop receiving emails from it, send an email to <a href="mailto:cp2k+unsubscribe@googlegroups.com">cp2k+unsubscribe@googlegroups.com</a>.<br />
To view this discussion on the web visit <a href="https://groups.google.com/d/msgid/cp2k/9c2b049c-33c1-4ea3-8fc6-a2729e461934n%40googlegroups.com?utm_medium=email&utm_source=footer">https://groups.google.com/d/msgid/cp2k/9c2b049c-33c1-4ea3-8fc6-a2729e461934n%40googlegroups.com</a>.<br />